U.S. patent application number 12/085794 was filed with the patent office on 2009-11-05 for ribbon needle loom for manufacturing a strip, in particular a label strip, having a woven-in conductive thread, in particular antenna thread.
Invention is credited to Francisco Speich.
Application Number | 20090272455 12/085794 |
Document ID | / |
Family ID | 36794941 |
Filed Date | 2009-11-05 |
United States Patent
Application |
20090272455 |
Kind Code |
A1 |
Speich; Francisco |
November 5, 2009 |
Ribbon Needle Loom for Manufacturing a Strip, in Particular a Label
Strip, Having a Woven-In Conductive Thread, in Particular Antenna
Thread
Abstract
In order to make it possible to weave in a conductive thread, in
particular an antenna thread, in a very wide variety of ways in a
ribbon needle loom for manufacturing a strip, in particular a label
strip, having a shedding apparatus for forming a shed (24) from
warp threads (8), a weft insertion needle (26) for inserting weft
thread loops, a reed (30) and having a feed apparatus (34) for a
thread which has a blade (34) which dips into the shed (24) between
warp threads (8) as far as under the insertion path of the weft
insertion needle (26), it is proposed that the blade is arranged on
a shaft (38) which is oriented transversely with respect to the
warp direction. The shaft is connected to a first drive apparatus
(40a) for performing a pivoting movement of the shaft. As a result
of the pivoting, the blade (34) dips into and out of the shed (24).
Furthermore, the shaft is connected to a second drive apparatus
(44a) for movement in the axial direction. As a result, the blade
(34) can be moved over the width of the strip (2).
Inventors: |
Speich; Francisco;
(Gipf-Oberfrick, CH) |
Correspondence
Address: |
George Pappas
919 S. Harrison Street, Suite 300
Fort Wayne
IN
46802
US
|
Family ID: |
36794941 |
Appl. No.: |
12/085794 |
Filed: |
December 23, 2005 |
PCT Filed: |
December 23, 2005 |
PCT NO: |
PCT/CH2005/000772 |
371 Date: |
May 30, 2008 |
Current U.S.
Class: |
139/22 ;
139/425R; 139/440 |
Current CPC
Class: |
D03D 47/02 20130101;
D10B 2401/18 20130101; D03D 1/0088 20130101; D10B 2401/16 20130101;
D03D 13/002 20130101; D03D 35/00 20130101; D03D 41/00 20130101;
D03D 31/00 20130101 |
Class at
Publication: |
139/22 ; 139/440;
139/425.R |
International
Class: |
D03D 35/00 20060101
D03D035/00; D03D 13/00 20060101 D03D013/00; D03D 47/02 20060101
D03D047/02; D03D 15/00 20060101 D03D015/00 |
Claims
1. A ribbon needle loom for manufacturing a strip, in particular a
label strip, having a woven-in conductive thread, in particular
antenna thread, with a shedding device forming a shed from warp
threads, with a weft insertion needle for the insertion of weft
thread loops, with a reed for beating up inserted weft thread loops
and with a feed device for a thread, which has a blade penetrating
between warp threads into the shed to below the insertion path of
the weft insertion needle and having a thread guide eye for the
thread, characterized in that the blade is arranged on a shaft
which is oriented transversely with respect to the warp direction
and which is connected to a first drive device for executing a
pivoting movement of the shaft, the blade penetrating into and
emerging from the shed as a result of the pivoting, and,
furthermore, the shaft being connected to a second drive device for
the travel of the shaft in its axial direction, with the result
that the blade can be moved over the entire width of the strip.
2. The ribbon needle loom as claimed in claim 1, characterized in
that the first drive device and the second drive device are
designed as a combined linear and pivoting motor.
3. The ribbon needle loom as claimed in claim 1, characterized in
that the second drive device is designed as a linear motor
connected to the shaft.
4. The ribbon needle loom as claimed in claim 3, characterized in
that the first drive device has a push rod which is connected to
the shaft via a lever mechanism.
5. The ribbon needle loom as claimed in claim 4, characterized in
that the first drive device has a linear motor interacting with the
push rod.
6. The ribbon needle loom as claimed in claim 1, characterized in
that the feed device is coupled to a return device connected to a
main drive of the ribbon needle loom, in order, after each weft
insertion, to withdraw the blade, if appropriate forcibly, out of
the weaving region.
7. The ribbon needle loom as claimed in claim 6, characterized in
that the return device has an eccentric drive which is connected to
the main drive and is connected to an oscillating lever which
cooperates with a stop on the push rod in such a way that, after
each weft insertion and before the reed is beaten up at the cloth
edge, the push rod can be moved back into the basic position
outside the range of action of the reed.
8. The ribbon needle loom as claimed in claim 1, characterized in
that the blade is provided with a predetermined breaking point
which lies outside the weaving region and which is activated in the
event of a malfunction.
9. The ribbon needle loom as claimed in claim 1, characterized in
that the first and the second drive device are connected to an
electronic control device for the pattern control of the ribbon
needle loom.
10. The ribbon needle loom as claimed in claim 2, characterized in
that the feed device is coupled to a return device connected to a
main drive of the ribbon needle loom, in order, after each weft
insertion, to withdraw the blade, if appropriate forcibly, out of
the weaving region.
11. The ribbon needle loom as claimed in claim 3, characterized in
that the feed device is coupled to a return device connected to a
main drive of the ribbon needle loom, in order, after each weft
insertion, to withdraw the blade, if appropriate forcibly, out of
the weaving region.
12. The ribbon needle loom as claimed in claim 4, characterized in
that the feed device is coupled to a return device connected to a
main drive of the ribbon needle loom, in order, after each weft
insertion, to withdraw the blade, if appropriate forcibly, out of
the weaving region.
13. The ribbon needle loom as claimed in claim 5, characterized in
that the feed device is coupled to a return device connected to a
main drive of the ribbon needle loom, in order, after each weft
insertion, to withdraw the blade, if appropriate forcibly, out of
the weaving region.
14. The ribbon needle loom as claimed in claim 2, characterized in
that the first and the second drive device are connected to an
electronic control device for the pattern control of the ribbon
needle loom.
15. The ribbon needle loom as claimed in claim 3, characterized in
that the first and the second drive device are connected to an
electronic control device for the pattern control of the ribbon
needle loom.
16. The ribbon needle loom as claimed in claim 4, characterized in
that the first and the second drive device are connected to an
electronic control device for the pattern control of the ribbon
needle loom.
17. The ribbon needle loom as claimed in claim 5, characterized in
that the first and the second drive device are connected to an
electronic control device for the pattern control of the ribbon
needle loom.
18. The ribbon needle loom as claimed in claim 6, characterized in
that the first and the second drive device are connected to an
electronic control device for the pattern control of the ribbon
needle loom.
19. The ribbon needle loom as claimed in claim 7, characterized in
that the first and the second drive device are connected to an
electronic control device for the pattern control of the ribbon
needle loom.
20. The ribbon needle loom as claimed in claim 8, characterized in
that the first and the second drive device are connected to an
electronic control device for the pattern control of the ribbon
needle loom.
Description
[0001] This application claims priority of PCT application
PCT/CH2005/000772 having a priority date of Dec. 23, 2005, the
disclosure of which is incorporated herein by reference.
TECHNICAL FIELD
[0002] The invention relates to a ribbon needle loom for
manufacturing a strip, in particular a label strip, having a
woven-in conductive thread, in particular antenna thread.
BACKGROUND OF THE INVENTION
[0003] A ribbon needle loom of the type initially mentioned is
known from CH 490 581. There, the fancy threads are arranged by
means of a blade during the weaving of a strip. How the blade is to
be actuated cannot be gathered from the publication. There are also
no suggestions to be found that the ribbon needle loom could be
suitable for weaving in a conductive thread, in particular an
antenna thread.
[0004] WO 2005/071605 describes a textile material with an antenna
and with an RF transponder. The textile material can be
manufactured by means of a weaving technique. However, more details
of this cannot be gathered from the publication.
SUMMARY OF THE INVENTION
[0005] The object of the invention is to specify a ribbon needle
loom which is suitable for manufacturing a strip, in particular a
label strip, having a woven-in conductive thread, in particular
antenna thread.
[0006] By the arrangement of a first drive device for inserting and
withdrawing the blade in the shed and with a second drive device
for moving the blade over the width of the strip, a ribbon needle
loom is made available which makes it possible to weave in a
conductor thread, in particular an antenna thread. In this case,
the blade is arranged on a shaft which is oriented transversely
with respect to the warp direction and which is suitable by means
of the first drive device for executing a pivoting movement and by
means of the second drive device for executing a traveling movement
in the axial direction of the shaft.
[0007] By means of the needle loom according to the present
invention, the conductive thread can be woven in in many different
ways. In the case of zigzag weaving in, the conductive thread can
be introduced under the weft thread during each weft or be led
freely over the warp threads between the ends of the zigzag lay and
come under the weft thread at the ends of the zigzag movement only.
However, any intermediate combination is also possible. On the
other hand, a meander-like lay is possible, in which the conductive
thread is alternately led transversely over the entire weaving
width during a single weft and is then tucked in each case between
the same warp threads for a larger number of wefts. Any desired
asymmetric lays of the conductive thread are also possible.
[0008] It is particularly advantageous if the first and the second
drive device are designed as a combined pivoting/linear motor.
[0009] The second drive device may be configured as a linear motor
connected to the shaft. A particularly simple solution for the
configuration of the first drive device is where the drive device
cooperates with a push rod which is connected to the shaft via a
mechanism, preferably a lever mechanism. In this case, the first
drive device may have a linear motor cooperating with the push
rod.
[0010] A particularly preferred embodiment is where the feed device
is coupled to a return device connected to a main drive of the
ribbon needle loom, in order, after each weft insertion, to
withdraw the blade, if appropriate forcibly, out of the weaving
region, should the first drive device for pivoting the blade into
and out of the shed fail. For this purpose, the return device may
have an eccentric drive which is connected to the main drive and is
connected to an oscillating lever with cooperates with a stop on
the push rod in such a way that, after each weft insertion and
before the reed is beaten up at the cloth edge, the push rod can be
moved back in each case into the basic position outside the range
of action of the reed.
[0011] To avoid damage to the ribbon fabric and/or to the ribbon
needle loom, the blade may be provided with a predetermined
breaking point which lies outside the weaving region and which is
activated in the event of a malfunction.
[0012] It is particularly advantageous if the first and the second
drive device are connected to an electronic control device for the
pattern control of the ribbon needle loom.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Exemplary embodiments of the ribbon needle loom are
described in more detail below with reference to the drawings in
which:
[0014] FIG. 1 shows a ribbon fabric with a conductive thread and
with a transponder;
[0015] FIG. 2 shows a first ribbon needle loom with a combined
first and second drive device in a diagrammatic illustration;
[0016] FIG. 3 shows a further ribbon needle loom with separate
first and second drive devices in a diagrammatic illustration;
[0017] FIG. 4 shows the ribbon needle loom of FIG. 3 with a return
device in a diagrammatic view, with the blade inserted; and
[0018] FIG. 5 shows the ribbon needle loom according to FIG. 4,
with the blade withdrawn.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0019] FIG. 1 shows a ribbon fabric 2 in which weft thread loops 6
are inserted from an insertion side 4 between warp threads 8. On
the side 10 lying opposite the insertion side 4, the weft thread
loops 6 are mutually tied off by means of stitches 12 indicated
diagrammatically as a line. A conductive thread 14 runs,
zigzag-shaped, on the topside of the ribbon fabric 2 and is tied in
at the turning points 16 in each case by means of a weft thread
loop 6. The conductive thread 14 serves as an antenna and is
interrupted at 18 before the application of a transponder chip 20
which is connected to the two ends of the conductive thread. Such a
connection may be implemented, for example, by welding, soldering,
bonding with an electrically conductive adhesive, crimping of
clamping.
[0020] FIG. 2 shows diagrammatically a ribbon needle loom 22 which
is suitable for manufacturing a ribbon fabric 2 of FIG. 1 with a
conductive thread 14, but without a transponder chip 20. Warp
threads 8 are opened by means of a shedding device, not illustrated
in more detail, into a shed 24, into which a weft thread loop 6 is
inserted into the shed 24 by means of the weft insertion needle 26.
On the side 10 lying opposite the insertion side 4, the weft thread
loop 6 is tied off in a known way by means of a knitting needle 28.
The inserted weft thread loop 6 is beaten up at the beating-up edge
32 by means of a reed 30.
[0021] A blade 34 serves for inserting the conductive thread 14 and
at the front end has a thread eye 36 through which the conductive
thread 14 is led. The blade 34 is fastened to a shaft 38 which by
means of a first drive device 40 executes a pivoting movement 42 in
order to insert the blade 34 between the warp threads 8 into the
shed 24, specifically to an extent such that the loop of the
conductive thread 14 comes under the insertion path of the weft
insertion needle 26. The conductive thread is thereby tied in in
the desired position and thus secured.
[0022] After the withdrawal of the blade 34 into the basic position
G indicated by dashes, the blade 34 can be moved by means of a
second drive device 44 in a linear movement 48 along the shaft 38
over the width of the ribbon fabric 2, in order to introduce the
blade 34 in another desired position of the ribbon fabric 2 between
the warp threads 8 into the shed 24 and fasten it. In the present
example, the first and the second drive device 40, 44 are designed
as a combined linear and pivoting motor 50. The motor is connected
to an electronic control device 52 which serves for the pattern
control of the needle loom 22 and consequently also of the blade
34.
[0023] FIG. 3 shows a ribbon needle loom 22a which is designed in a
similar way to the ribbon needle loom 22 in FIG. 2, although the
first drive device 40a for the pivoting movement 42 and the second
drive device 44a for the linear movement 48 are formed separately.
For this purpose, the first drive device 40a contains a linear
motor 54 actuating a push rod 56 which is connected to the shaft 38
via a lever 58.
[0024] FIG. 4 shows a ribbon needle loom 22b which is a development
of the ribbon needle loom 22a of FIG. 3. This ribbon needle loom
contains a forced-return device 60 for returning the blade 34 to
its basic position G indicated by dashes and dots, should the first
drive device 40a fail and the blade 34 can no longer leave the
weaving region. The return device 60 contains an eccentric drive 62
which is preferably connected in a way not illustrated in any more
detail to the main drive shaft of the ribbon needle loom 22b and
which operates at the same frequency as the weft insertion needle
26. The eccentric drive 62 is connected via a lever mechanism 64 to
a rocker 66 which is mounted pivotably at one end on a pin 68. The
other end of the rocker 66 cooperates with a stop 70 which is
arranged fixedly on the push rod 56. The return device 60 is used,
should the first drive device 40a not have moved the push rod 56
into the basic position, and then the stop 70 is moved by means of
the rocker 66 and the eccentric drive 62 into the basic position,
illustrated by dashes, in which the blade 34 comes free of the
weaving region of the ribbon needle loom, so that the reed 30 can,
undisturbed, beat up the inserted weft thread loop at the
beating-up edge 32.
[0025] To safeguard the ribbon needle loom, on the one hand, and
the ribbon fabric, on the other hand, instead of the return device
60, the blade 34 may be provided with a predetermined breaking
point 72 which lies outside the weaving region. This predetermined
breaking point may be used, on the one hand, when the second drive
device 44a executes a linear movement 48 transversely with respect
to the ribbon fabric 22, even before the blade 34 has left the shed
24. On the other hand, the predetermined breaking point 70 may be
used when the reed 30 executes the beating up of the weft thread
loop 6 even before the blade 34 has returned into the basic
position G.
LIST OF REFERENCE SYMBOLS
[0026] 2 Ribbon fabric [0027] 4 Insertion side [0028] 6 Weft thread
loop [0029] 8 Warp thread [0030] 10 Side [0031] 12 Stitch [0032] 14
Conductive thread [0033] 16 Turning point [0034] 18 Interruption
[0035] 20 Transponder chip [0036] 22 Ribbon needle loom [0037] 22a
Ribbon needle loom [0038] 22b Ribbon needle loom [0039] 24 Shed
[0040] 26 Weft insertion needle [0041] 28 Knitting needle [0042] 30
Reed [0043] 32 Beating-up edge [0044] 34 Blade [0045] 36 Thread eye
[0046] 38 Shaft [0047] 40 First drive device [0048] 40a First drive
device [0049] 42 Pivoting movement [0050] 44 Second drive device
[0051] 44a Second drive device [0052] 48 Linear movement [0053] 50
Linear/pivoting motor [0054] 52 Control device [0055] 54 Linear
motor [0056] 56 Push rod [0057] 58 Lever [0058] 60 Return device
[0059] 62 Eccentric drive [0060] 64 Lever mechanism [0061] 66
Rocker [0062] 68 Pin [0063] 70 Stop [0064] 72 Predetermined
breaking point
* * * * *